Vertical Vessels ed By Lugs 1h34b

Total weight of vessel No. of lugs Uncorroded thickness of shell plate Corrosion allowance Distance of centerline of bolt hole from outside of shell Inside diameter of shell Unit width of shell ring Maximum internal pressure Allowable stress value Maximum load on each lug Corroded thickness of shell plate Mean shell radius in corroded condition Effective shell width on each side of lug Maximum moment on shell due to eccentric loading Radial force on unit shell ring Multiplying coefficient Multiplying coefficient Tangential tensile force on unit shell ring Area of unit shell ring Tangential tensile stress due to lug Bending moment on unit shell ring Section modulus of unit shell ring Tensile bending stress due to lug Longitudinal tensile stress in shell due to intrnal pressure Circumferential tensile stress in shell due to internal pressure Longitudinal tensile stress Resultant circumferential tensile stress Maximum Shear Stress Shell at the lugs should be stiffened

Wt NLUG t c L ID b P Sa F ts rc g

16,910.000 2.000 0.750 0.125 8.250 24.000 1.000 640.000 17,500.000 8,455.000 0.625 12.438 1.394 OK M 69,753.750 f1 2,112.978 K1 0.000 K2 0.318 T 0.000 A 0.625 σct 0.000 Mr 8,357.093 S 0.065 σcb 128,364.954 σmp 6,368.000 σ 12,736.000 σmp' 6,368.000 OK σc 141,100.954 excessive tao max 70,550.477 excessive

lb in in in in in psi psi lb in in in in-lb lb/in

lb in^2 in-lb in^3 psi psi psi psi psi psi